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Which of the following is true of unicellular organisms?
A
They are always eukaryotic.
B
They have multiple cells working together.
C
They cannot survive independently.
D
They consist of a single cell that performs all necessary functions.
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1
Understand the definition of unicellular organisms: Unicellular organisms are composed of a single cell that carries out all life processes necessary for survival.
Recognize the types of unicellular organisms: These can be either prokaryotic, like bacteria, or eukaryotic, like certain algae and protozoa.
Identify the characteristics of unicellular organisms: They perform all essential functions such as metabolism, growth, and reproduction within one cell.
Clarify the misconception about multicellularity: Unicellular organisms do not have multiple cells working together; they function independently as a single cell.
Conclude with the correct statement: Unicellular organisms consist of a single cell that performs all necessary functions, allowing them to survive independently.